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NE80 OSPF fails in the intercommunication due to STP protocol

Publication Date:  2012-07-27 Views:  37 Downloads:  0
Issue Description

Networking:
There are two links between two NE80s, they connect each other with layer-2 board.

NE80A GigabitEthernet2/1/1--NE80B GigabitEthernet2/1/0

NE80A GigabitEthernet3/0/0--NE80B GigabitEthernet3/0/0

GE3/0/0 on two NE80S belong to VLAN 106 and configure as Access interface.GigabitEthernet2/1/1 on NE80A and GigabitEthernet2/1/0 on NE80B are Trunk interfaces, but deny Vlan 106.user feedbacks the condition, the neighbors of OSPF cannot be established.

Alarm Information
Null
Handling Process
logon the device and detect OSPF neighbor cannot be established because two NE80s enable STP protocol, G3/0/0 on NE80B is blocking. The problem is solved after removing interface STP.
Root Cause
STP blocking interface has no relation with the detailed vlan, STP still thinks networking loops exit,then block the interface.  
Suggestions

Null

END